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    <title>fspecg</title>
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    <center>Scilab Function</center>
    <div align="right">Last update : April 1993</div>
    <p>
      <b>fspecg</b> -  stable factorization</p>
    <h3>
      <font color="blue">Calling Sequence</font>
    </h3>
    <dl>
      <dd>
        <tt>[gm]=fspecg(g).  </tt>
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    <h3>
      <font color="blue">Parameters</font>
    </h3>
    <ul>
      <li>
        <tt>
          <b>g,gm</b>
        </tt>: <tt>
          <b>syslin</b>
        </tt> lists (linear systems in state-space representation)</li>
    </ul>
    <h3>
      <font color="blue">Description</font>
    </h3>
    <p>
    returns <tt>
        <b>gm</b>
      </tt> with <tt>
        <b>gm</b>
      </tt> and <tt>
        <b>gm^-1</b>
      </tt> stable such that:</p>
    <pre>

gtild(g)*g = gtild(gm)*gm
   
    </pre>
    <p>
      <tt>
        <b>g</b>
      </tt> and <tt>
        <b>gm</b>
      </tt> are continuous-time linear systems in state-space form.</p>
    <p>
    Imaginary-axis poles are forbidden.</p>
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